“分级机”用英语怎么说

涡流空气分级机是一种重要的粉体分级设备.The turbo air classifier is a very important powder classification device.涡轮式气流分级机是精密分级设备中非常重要的类型之一.Turbo air classifier is a important style of accurate classifying facilities.涡流式空气分级机是干法分级的重要设备.The ...